The bottle you show is a paintball bottle. WAY to small for a heavy. And as the rules don't allow 3000psi gas pressure in the machines, not suitable.

The compressor is a toy. Good for an airmatress at the beach, and maybe re-inflate a not to flat car tyre in the field

The regulator is a low pressure one. Feed that anything over 20 bar, and you get a self disconstructing piece of kit.